package day04;
import java.util.Scanner;   //导入一个扫描仪
//Scanner的演示
public class ScannerDemo {
    public static void main(String[] args) {
        //创建CommandBySwitch类, 接受用户输入的命令command(int), 并输出
        Scanner scan = new Scanner (System.in); //2. 新建一个扫描仪, 叫scan
        System.out.println("请输入年龄:");
        int age = scan.nextInt();   //3. 扫描一个整数并赋值给age
        System.out.println("请输入商品价格");
        double price = scan.nextDouble();   //3. 扫描一个小数并赋值给price
    }
}
